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Finding the Fourth Proportional to 213,812.16, 320,623.44 and 113,953.76

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Solution

The fourth proportional to 213,812.16, 320,623.44 and 113,953.76 is: 170,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,812.16 : 320,623.44 = 113,953.76 : x
  2. Step 2: Convert to fraction form
    213,812.16/320,623.44 = 113,953.76/x
  3. Step 3: Cross multiply
    213,812.16x = 320,623.44 × 113,953.76
  4. Step 4: Simplify right side
    213,812.16x = 36,536,246,532.13
  5. Step 5: Solve for x
    x = 36,536,246,532.13/213,812.16
  6. Step 6: Final answer
    x = 170,880.12

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